Digital camera

About: Digital camera is a research topic. Over the lifetime, 12169 publications have been published within this topic receiving 137431 citations. The topic is also known as: digicam & digital still camera.

Remote determination of image-acquisition settings and opportunities

Abstract: Pre-image-acquisition information is obtained by a digital camera and transmitted to a system external to the digital camera. The system is configured to provide image-acquisition settings to the digital camera. In this regard, the digital camera receives the image-acquisition settings from the external system and performs an image-acquisition sequence based at least upon the received image-acquisition settings. Accordingly, the determination of image-acquisition settings can be performed remotely from the digital camera, where data-processing resources can greatly exceed those within the digital camera.

Panoramic digital camera system

Abstract: Method and apparatus for recording images at a scene in a panoramic manner enabling subsequent reproduction at remote display devices, and particularly enabling selection of a particular viewing angle at each display device without interfering with selection of viewing angles at other display devices. A stationary camera is operated at the scene being recorded, with a rapidly rotating mirror directing optical images successively from a three hundred sixty degree pattern about the axis of the lens of the stationary camera. Rotational speed is selected such that images are captured at frequencies assuring that reproduction of the images will yield continuous, smooth moving images from one selected viewing angle. The optical images are directed into the camera and then rendered into digital form and entered into memory. Shutter speed or rate and timing of data conversion or entry into memory is controlled to assure capture of optical images repeatedly from several predetermined different viewing angles, as recorded at the camera. Data entered into memory is subsequently transmitted for reproduction at a plurality of remotely located display devices such as CRTs. The operator of each CRT can control his or her CRT to display aspects of images, such as selecting one of the viewing angles, zooming, and changing viewing angles, independently of images displayed at other CRTs.

Compressive Light Field Sensing

Abstract: We propose a novel design for light field image acquisition based on compressive sensing principles By placing a randomly coded mask at the aperture of a camera, incoherent measurements of the light passing through different parts of the lens are encoded in the captured images Each captured image is a random linear combination of different angular views of a scene The encoded images are then used to recover the original light field image via a novel Bayesian reconstruction algorithm Using the principles of compressive sensing, we show that light field images with a large number of angular views can be recovered from only a few acquisitions Moreover, the proposed acquisition and recovery method provides light field images with high spatial resolution and signal-to-noise-ratio, and therefore is not affected by limitations common to existing light field camera designs We present a prototype camera design based on the proposed framework by modifying a regular digital camera Finally, we demonstrate the effectiveness of the proposed system using experimental results with both synthetic and real images

Automobile security defence alarm system with face identification and wireless communication function

Abstract: An automobile alarm system includes: (1) a face identification and discrimination system, which consists of low-light, visible light, infrared light, and thermo-luminescence camera and/or digital camera device for photograph of inside and outside of automobiles, and face identification and discrimination hardware and software system for testing whether a mask or facial adornments or whether his/her face is directed at the camera; (2) redundancy device and/or redundancy function modules, anti-interference system for communication and anti-destructive detection system; (3) a automobile status recorder, which can record the statuses on the inside and outside of the automobile before, during and after an emergent event picked up by the camera; (4) a multi-functional burglar, anti-destructive and anti-hijacking alarm for automobiles, which can transmit a radio image to a remote equipment for reporting an incident. This invention can also be used for every supervision systems.

Imaging device and digital camera

Abstract: An imaging device includes an image sensor chip and a package for containing the image sensor chip. Formed in the package is a vent hole that is connected to an air pump. In a light receiving area of the image sensor chip, there are photodiodes and microlenses above them. The microlenses are made of a gel-like transparent material. When the internal air pressure of the package is changed by the air pump, each microlens transforms in response to the change of the internal air pressure, and thereby changes the surface curvature thereof.